18916150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1$

素因数の和:397

約数の個数: 48

約数和(自身を含む): 38801088

約数和(自身を除く): 19884938

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 163, 211, 275, 326, 422, 550, 815, 1055, 1630, 1793, 2110, 2321, 3586, 4075, 4642, 5275, 8150, 8965, 10550, 11605, 17930, 23210, 34393, 44825, 58025, 68786, 89650, 116050, 171965, 343930, 378323, 756646, 859825, 1719650, 1891615, 3783230, 9458075, 18916150]

約数ペア:

[(1, 18916150), (2, 9458075), (5, 3783230), (10, 1891615), (11, 1719650), (22, 859825), (25, 756646), (50, 378323), (55, 343930), (110, 171965), (163, 116050), (211, 89650), (275, 68786), (326, 58025), (422, 44825), (550, 34393), (815, 23210), (1055, 17930), (1630, 11605), (1793, 10550), (2110, 8965), (2321, 8150), (3586, 5275), (4075, 4642)]